Egbert alexander moore



R. A. MOORE.

COOLING MEANS FOR INTERNAL COMBUSTION ENGINES.

APPLICATION FILED MAY 5. 1920.

1 ,388,965. Patented Aug. 30, 1921.

31mm M tO L 95 v 1i I, l r y w 1 UNITED sTArss PATENT OFFICE.

301mm ALEXANDER MOORE, or NEW YORK, 151. Y.

COOLING MEANS FOR INTERNAL-COMBUSTION ENGCIIITES.

To all whom it may concern:

Be it known that I, Rosana ALEXANDER Moons, a citizen of the United Statearesidingat New York, in the county of New York and State of New .York, have invented certain new and useful Improvements in C001 ing Means for InternaleCombustion Engines, of which the following is a specificainto the crank case of the engine where the lubricant during operation of theengine is subjected to thecooling effect by contact with the conveying means. For a full understanding of the invention reference is to be had to the following description and accompanying drawings, whereinr Figure 1 is a vertical longitudinal sectional view through a motor constructed with'my particular air cooling means; and

Fig. 2 is a fragmentary sectional view through one of the cylinders taken at right angles to the section of Fig. 1.

Throughout the following detail descr1p tion and on the several figures of the drawings, similar parts are referred to by like reference characters.

Referring to said drawings, 1 indicates the cylinder or cylinders and 2 the piston, the specific constructions of which need not be particularly referred to herein, since they form the subject matter of a separate and distinct application379,121, May 5, 1920. 3 designates the crank case and l the crank shaft. The outer surface of the cylinder, or cylinders as the case may be, is provided with a series of spirally arranged fins 5 which lead downwardly to the crank case. These fins are surrounded by a thin jacket- 6 so they in conjuction withthe latter, which is open at the top, provide a series of spiral passages through which the cooling air is adapted to be drawn by movement of the fly wheel 7 which is mounted upon the Specification of Letters Patent.

Application iiled May 5, 1920. Serial No. 379,122.

crank shaft 4; within a separate compartment of the crank case indicated by 8. The fly wheel is provided with fan blades 9 which during the operation of the fly wheel create a suction that is communicated to each of the spiral passages surrounding the cylinder through the instrumentality of the tubes 10, there being provided any suitable number or arrangement of these for said spiral passages. These tubes pass through the upper portion of the crank case and the oil during movement of the crank arms is splashed upon the outer surface of the tubes and is therefore subjected to a certain degree of cooling produced by the passage of the cooling medium through these tubular passages.

Owing to the arrangement it will be observed that the cooling air under the induction action first acts upon that part of the cylinder which is most highly heated by the products of combustion and this cooling medium is given an opportunity to be slightly cooled owing to radiation of the parts at the base of the cylinder so that the cooling action is quite effective in its passage through the tubes 10 to maintain the lubricant at the temperature desired.

It will be apparent from the foreging that a very simple arrangement is thus provided for either a single cylinder or a plurality of cylinders and a uniform cooling action is afforded.

It should be understood that while I have shown what is termed a cooling system best suited for air it is nevertheless quite within the purview of my invention to comprehend the use of any other cooling medium for this purpose.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. The combination with an internal combustion engine including a lubricant containing crank case, of a lubricant cooling conduit within the crank case in position to receive upon its outer surface the lubricant splashed by the crank and means actuated by the engine for causing a cooling medium to circulate through said conduit to cool the lubricant in contact therewith.

2. In an internal combustion engine of the class described, a cylinder, spiral fins extending about the wall thereof, an open ended jacket surrounding the fins and forming therewith a series of passages, a crank case, a tube connecting with the jacketed space, and passing through the crank case in position for the lubricant therein to be thrown upon its surface to thereby cool said lubricant, and engine operated means in the end of the crank case for inducing a circulation of the cooling medium from the top of the cylinder through the tubular passages.

3; In an internal combustion engine 01"- the class described, a cylinder, a crank case, spiral fins surrounding the wall of: the cylinder, a jacket surrounding said fins and opening at its upper end, said jacket co-acting with the fins to form a series of passages, a crank shaft mounted in said crank case, a fan member operated thereby, a chamber in which said fan member is mounted and tubular means leading from the cylinder passages through the crank case to the chamber of said tan member whereby the cooling medium is adapted to be drawn through said cylinder passages and tubular means to cool the walls of the cylinder and the lubricant in the crank case.

4. The combination with an internal combustion engine including a cylinder and a lubricant containing crank case, of jacket means associated with the cylinder to form a cooling space, a lubricant cooling conduit within the crank case, and means actuated by the engine for causing a cooling medium to circulate through said cooling space and conduit. 7

5. The combination with an internal combustion engine including a cylinder and a lubricant containing crank case, of a jacket associated with the cylinder to form a cooling space, a lubricant cooling conduit within the crank case, said conduit being connected to the cooling space about the cylinder, and a fan driven by the engine to cause a circulation of air through said cooling space and conduit.

6. The combination with an internal combustion engine having a cylinder, a lubricant containing crank case and a balance wheel, of a jacket extending over the cylinder in spaced relation thereto am a conduit intermediate said jacketed space and the balance wheel and passing through said crank case in contact with a lubricant supply therein contained, and fan blades mounted upon the balance wheel and arranged to produce a. circulation of air through said jacketed space and conduit whereby to cool the cylinder and the lubricant supply.

In testimony whereof I afiix my signature.

ROBERTALEXANDERMOORE. 

